One plan catalog, two categories. Every plan covers Polymarket crypto and sports markets — more than 1.31 million of them — and every plan queries at the finest available resolution, 250ms for crypto and sports alike, including the free Starter plan. Sports access covers the most recent 30 days, so the 30-day window returns both categories and the 60, 90 and 120-day windows are crypto only. Latency: measured server-side history reads (~1ms); end-to-end <50ms on well-connected networks. Pick a data window, add speed or Backtest AI as needed, and pay with card or 300+ cryptocurrencies at checkout.
Start free — no credit card required.
Pick a history window, then add speed and Backtest AI as needed.
History window
Speed
300 requests/min · 50,000/day
Pay by card or crypto
Write your idea in plain English. We'll tell you if it's a money-maker.
Pay by card or crypto
Full data dumps, custom feeds, and bespoke delivery.
| Plan | Price | Finest resolution | API rate limit | History window |
|---|---|---|---|---|
| Starter | $0 | 250ms | 60 requests/min · 1,000/day | 3 days |
| 30-day data | $19/mo | 250ms | 300 requests/min · 50,000/day | 30 days |
| 60-day data | $29/mo | 250ms | 300 requests/min · 50,000/day | 60 days |
| 90-day data | $39/mo | 250ms | 300 requests/min · 50,000/day | 90 days |
| 120-day data | $49/mo | 250ms | 300 requests/min · 50,000/day | 120 days |
| Backtest AI add-on | +$19/mo | — | Any window speed | On any data plan |
| Backtest AI (standalone) | $29/mo | 250ms (archive replay) | AI endpoint | 30 days (for AI) |
| Enterprise | Custom | Custom | Custom | Custom |
Backtest AI
Backtest AI lets you describe a crypto Up/Down strategy in plain English and replay it over real 250ms L2 order books. Every run includes fill simulation, slippage estimates, and an AI-generated analysis of the results.
More questions answered on the FAQ page →
Yes — Starter is free with no credit card. Sign up, verify your email, and create an API key from the dashboard. Pick a data window from $19/mo (30 days of history, up to 120) and add Backtest AI for +$19/mo, or get the standalone Backtest AI plan for $29/mo with 30-day market data and unlimited strategy backtests — all from the pricing page with card or crypto checkout.
History endpoints take a resolution parameter (how finely points are returned). We run a 250ms capture loop over open markets. Every plan, including the free Starter tier, can query down to 250ms. Coarser buckets (1s–1d) stay on every plan.
We collect and serve Polymarket crypto and sports markets from a single catalog behind one API key. Pass category=crypto or category=sports to narrow a request to one of them, or omit it to page across both. Other categories, such as politics, are not covered yet.
Starter includes sports at full coverage — it is not a paid add-on and there is no second key or client. Coverage is not tiered by category on any plan: every plan, free Starter included, reaches all 1.16 million crypto and sports markets and all 360 series. Finest resolution is 250ms for both categories, on every plan; the only things a plan changes are the history window and the rate limit.
Exceeding your plan's per-minute or daily caps returns HTTP 429 with a Retry-After header (seconds). Slow your client and retry, or upgrade to a faster speed (Fast +$19/mo, Heavy +$39/mo) from the pricing page for higher limits.
Yes. Paid plans support card payments and 300+ cryptocurrencies at checkout. Starter stays free with no payment required.
Open your dashboard and click Manage subscription to open the billing portal. You can cancel, update your payment method, or download invoices there. Plan changes take effect after the provider confirms the update.
Not as a standard self-serve plan. Enterprise customers can arrange S3 bulk exports in Parquet, CSV, or JSON — one-time or on a schedule. Email contact@polyorderbooks.com or see the Enterprise tier on pricing to discuss.
New to the data? Read our Polymarket API data guide or the historical data overview.